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5,5′‐Diamino‐2,2′‐bipyridin‐1,1′‐diium bis(5,5′‐diamino‐2,2′‐bipyridin‐1‐ium) tetrakis(rac‐1,1′‐binaphthalene‐2,2′‐diyl phosphate) hexahydrate: a two‐dimensional supramolecular hydrogen‐bonded network
| Content Provider | Semantic Scholar |
|---|---|
| Author | Wisser, Barbara Janiak, Christoph |
| Copyright Year | 2007 |
| Abstract | In the title compound, C10H12N42+·2C10H11N4+·4C20H12O4P−·6H2O, the 1,1′-binaphthalene-2,2′-diyl phosphate anion and 5,5′-diamino-2,2′-bipyridine as hydrogen-acceptor and -donor building blocks, respectively, are combined in a supramolecular two-dimensional hydrogen-bonding network of one centrosymmetric diprotonated diaminobipyridin-1,1′-ium dication, two monoprotonated diaminobipyridinium cations, four phosphate counter-anions and six water molecules of crystallization. Protonation of diaminobipyridine to the bipyridinium mono- or dication enhances the hydrogen bonding due to the primary electrostatic attraction with the anion. The packing can be rationalized by a separation of the hydrophobic binaphthyl backbone from the hydrophilic (RO)2PO2− phosphate groups, bipyridinium cation and water components. The binaphthyl tail-to-tail packing in the hydrophobic lamellae as well as the diaminobipyridinium packing is governed by π–π and C—H⋯π interactions. |
| File Format | PDF HTM / HTML |
| DOI | 10.1107/S1600536807021794 |
| Alternate Webpage(s) | http://journals.iucr.org/e/issues/2007/06/00/hg2222/hg2222.pdf |
| Alternate Webpage(s) | https://portal.uni-freiburg.de/janiak/veroffentlichungen/pdf/pdf172 |
| Alternate Webpage(s) | https://doi.org/10.1107/S1600536807021794 |
| Volume Number | 63 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
